Publications / 2000 Proceedings of the 17th ISARC, Taipei, Taiwan

Application of Image Analysis on Tunnelling in Gravel Formations

Keh-Jian Shou, Chia-Tsung Wu
Pages 1-5 (2000 Proceedings of the 17th ISARC, Taipei, Taiwan, ISBN 9789570266986, ISSN 2413-5844)
Abstract:

Gravel formations are widely distributed in Taiwan area, especially at the western terraces and foothills of the Central Ridge. The gravel formations are composed of a composite geomaterial which is mainly consisted of different sized gravels and different types of soils. Their engineering properties are quite different not only with each other but also from other soil or rock formations, therefore, the classification methods for rock tunnelling such as RMR and Q-system are not applicable. In this study, the image analysis method together with simple insitu testing are adopted as the measurement for the engineering classification of gravel formations. This quantitative measurement can be used as the basis of support design for tunneling in gravel formations.

Keywords: gravel formations, tunnelling, image analysis